Use of medical resources by Spancos. I. Extent and sources of medical care in a very old population.
D000368:Aged; D003153:Community Health Services; D005853:Geriatrics; D006760:Hospitalization; D006761:Hospitals; D006801:Humans; D008297:Male; D014481:United States; D014493:United States Department of Veterans Affairs; D014728:Veterans